Across with Perceptol

[stefano_4565]

Would like to know some other experience to develop the acros 100 4 x5 with the perceptol, expert drum. I develop 11 min to 20 ° 40 rpm (n) and 7,5 min to 20 ° 40 rpm (N-1).
Stefano (Italia)

[Sal Santamaura]

In a process established to be compatible with high summer ambient and tap water temperatures:

3006 drum

4 sheets 4x5 Acros

all solutions at 81 degrees F

rotation speed F with new motor (not measured, but claimed by Jobo to be 46 rpm)

5 minute presoak

250ml Perceptol + 750ml water for 7 minutes 30 seconds

30 second water rinse

7 minute fix in TF-4

Result: "N" contrast (CI=0.56) and EI=125